Thanos vs A brusied and bloody Galactus
Whether or Not it was a low showing for Galactus at was shown in the Thanos books. When Thanos first came to Galactus he stated that Galactus look well feed. Galactus said after dealing with Thanos vital energies were depleinshed and his hunger was apon him. The last pages of those books shows a battered bruised and bloody Galactus on his butt on a chunk of planet. Thanos warns Galactus of his recklessly feeding and said he would be on the side of an army who looked to end Galactus' terror. So at that point could Thanos defeated Galactus while he was in that weakend state?